Operational Data Checking

An automatic data checking system has been implemented at ECMWF to trigger warnings in case of anomalies affecting the quality or the availability of the data assimilated by the model. Selected statistical parameters (number of observations, bias correction, and mean bias-corrected background, analysis departures and probability of gross error) are checked against an expected range. An appropriate alert message (including a time series plot) is generated if statistics are outside the specified ranges. A severity level (slight, considerable, severe) is assigned to each message depending on how far statistics are from the expected values. Two kinds of ranges are used by the automatic checking: Soft and Hard limits. Soft limits are updated automatically using statistics from the last twenty days (extremes are excluded during this process). Hard limits are adjusted manually when required.

Currently, the automatic checking is limited to data passing through the minimisation process (including VarBC passive data). It's being applied twice a day to the delayed cut-off 4D-VAR cycles (00 and 12) and four times a day to the early delivery assimilation system (00,06,12 and 18).

The alarm system results are based on feedback information from the ECMWF data assimilation and consequently reflect the ECMWF data usage. Although most warnings are related to data problems, they may on occasion also be related to model issues. Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice. ECMWF accepts no responsibility for actions taken on the basis of these results.

Delayed cut-off 4DVAR at 2022-06-30 00:00

amsua
METOP-B AMSUA ALL SKY RADIANCES CHANNEL 13 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1042, expected range: 0.1615 0.1835
METOP-C AMSUA ALL SKY RADIANCES CHANNEL 13 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.4037, expected range: -0.3521 -0.2938
iasi
METOP-B IASI RADIANCES CHANNEL 5480 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.4042, expected range: -0.3632 -0.3475
METOP-B IASI RADIANCES CHANNEL 163 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.2419, expected range: 0.2658 0.2771
METOP-B IASI RADIANCES CHANNEL 170 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1846, expected range: 0.2102 0.2287
METOP-B IASI RADIANCES CHANNEL 1513 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1637, expected range: -0.1438 -0.1197
METOP-C IASI RADIANCES CHANNEL 144 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1691, expected range: 0.1943 0.2002
METOP-C IASI RADIANCES CHANNEL 170 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1658, expected range: 0.1863 0.2029
METOP-C IASI RADIANCES CHANNEL 183 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1611, expected range: 0.1896 0.2031
METOP-C IASI RADIANCES CHANNEL 189 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1296, expected range: 0.1601 0.1703
METOP-C IASI RADIANCES CHANNEL 195 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0989, expected range: 0.1249 0.1260
METOP-C IASI RADIANCES CHANNEL 329 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.2622, expected range: -0.2326 -0.2092
METOP-C IASI RADIANCES CHANNEL 360 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.2189, expected range: -0.1894 -0.1694
ssmis
DMSP-17 SSMIS RADIANCES CHANNEL 7 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: stdev_norm_fgdepar=0.0051, expected range: 0.0044 0.0047
gpsro
COSMIC2-E1 GPSRO SETTING (23 impact heights affected) : out of range
Slight: obs_number=2508.0000, expected range: 2842.5835 3985.5415
COSMIC2-E2 GPSRO SETTING (24 impact heights affected) : out of range
Slight: obs_number=1508.0000, expected range: 1860.4830 2827.7670
Atmospheric Motion Vector
NOAA-15 AVHRR IR WIND VECTOR DIFF (M/S) PRESSURE LAYER 600-900 (HPA) : out of range
Slight: obs_number=217.0000, expected range: 30.0796 152.2508
Geostationary CSR
HIMAWARI-8 AHI RADIANCES CHANNEL 2 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1862, expected range: 0.1124 0.1476
METEOSAT-11 SEVIRI RADIANCES CHANNEL 3 : out of range
Considerable: stdev_fgdepar=0.9317, expected range: 0.6663 0.8194
resat
All AURA OMI ALL LAYERS Global : all data missing
Severe: obs_number=0, expected range: 17477.56 24154.69
Radiosondes
All HIGH RESO SEA TEMP ALL LAYERS North East Pacific : all data missing
Severely_persistent: obs_number=0, expected range: 46.16 492.19
LAND TEMP Q (G/KG) 30230 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=4.9267, expected range: 0.3269 1.9322
LAND TEMP WIND VECTOR DIFF (M/S) 38064 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=18.1484, expected range: 0.6515 6.8066
LAND TEMP WIND VECTOR DIFF (M/S) 38064 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_pge=0.8826, expected range: -0.8923 0.7500
HIGH RESO LAND TEMP Q (G/KG) 94510 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=2.5811, expected range: 0.0000 1.1649
HIGH RESO LAND TEMP Q (G/KG) 15614 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=2.2974, expected range: 0.0000 1.2171
HIGH RESO LAND TEMP Q (G/KG) 76405 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=2.7415, expected range: 0.0000 1.5653
HIGH RESO LAND TEMP Q (G/KG) 22008 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=2.5940, expected range: 0.0000 1.2339
HIGH RESO LAND TEMP TEMPERATURE (K) (2 pressure layers affected) : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=278.0000, expected range: 364.2069 383.2931
LAND TEMP Q (G/KG) PRESSURE LAYER 900-1200 (HPA) : out of range
Considerable: rms_fgdepar=2.0054, expected range: 0.8985 1.5779
amdar
WIGOS AMDAR TEMPERATURE (K) ERSXOEZA PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=7.6858, expected range: 0.0000 3.6036
Severe: avg_pge=0.8995, expected range: -0.8830 0.7500
WIGOS AMDAR WIND VECTOR DIFF (M/S) 1HTUIRBA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.2266, expected range: 0.5636 5.6959
WIGOS AMDAR Q (G/KG) WWJWUUJA PRESSURE LAYER 900-1200 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-6.0066, expected range: -11.0001 3.6100
Severe: rms_fgdepar=6.0782, expected range: 0.0000 8.8770
airep
AIREP WIND VECTOR DIFF (M/S) ANZ141 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=34.7780, expected range: 0.5547 6.5789
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA) : missing
6 times in the last 10 days for at least one item
Severely_persistent: obs_number=0.0000, expected range: 0.0000 773.4010
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 01405 PRESSURE LAYER 0-300 (H : out of range
Severe: avg_pge=0.8011, expected range: -0.7068 0.7500
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 97686 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: avg_pge=0.8360, expected range: -1.1475 0.7500
synop
BUFR LAND SYNOP SURFACE PRESSURE (PA) 41573 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=857.6121, expected range: 439.4227 1251.2934
Severely_persistent: rms_fgdepar=859.6740, expected range: 441.4077 1251.8928
BUFR LAND SYNOP SURFACE PRESSURE (PA) 42077 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8551, expected range: -1.7030 0.7500
BUFR LAND SYNOP RH2M (%) 64040 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9774, expected range: -1.0266 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40080 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=382.4282, expected range: 0.0000 208.5190
Severe: avg_pge=0.8380, expected range: -1.0126 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 60355 : out of range
Severe: avg_pge=0.8047, expected range: 0.4854 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 60475 : out of range
Severe: rms_fgdepar=309.7543, expected range: 0.0000 172.9171
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 60775 : out of range
Severe: rms_fgdepar=317.5694, expected range: 0.0000 161.8579
MANUAL LAND SYNOP RH2M (%) 62124 : out of range
Severe: rms_fgdepar=37.1668, expected range: -17.2592 25.1060
Severe: avg_pge=0.9809, expected range: -0.0012 0.0074
MANUAL LAND SYNOP RH2M (%) 60767 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9998, expected range: -1.4497 0.7500
MANUAL LAND SYNOP RH2M (%) 41739 : out of range
Severe: rms_fgdepar=42.2702, expected range: 0.0000 20.6098
Severe: avg_pge=0.9950, expected range: -0.0993 0.1212
MANUAL LAND SYNOP Z (M) 38462 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9751, expected range: -0.8400 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) : out of range
3 times in the last 10 days for at least one item
Severe: obs_number=5147.0000, expected range: 4206.1623 4264.0877
Severe: obs_number=6959.0000, expected range: 5485.2628 5607.7372
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48331 : out of range
Severe: rms_fgdepar=374.0428, expected range: 0.0000 149.5027
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48991 : out of range
Severe: avg_fgdepar=729.0750, expected range: -54.9114 365.0752
Severe: rms_fgdepar=729.0750, expected range: 0.0000 365.0752
Severe: avg_pge=0.9245, expected range: -0.4965 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 81996 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=-662.3860, expected range: -1245.4958 -8.3179
Severe: rms_fgdepar=691.7481, expected range: 108.0219 1194.5828
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48387 : out of range
Severe: rms_fgdepar=355.1147, expected range: 4.6906 150.1988
BUFR LAND SYNOP SURFACE PRESSURE (PA) 36819 : out of range
Severe: rms_fgdepar=437.3475, expected range: 0.0000 132.9150
BUFR LAND SYNOP RH2M (%) 13600 : out of range
Severe: avg_pge=0.8072, expected range: -0.9474 0.7500
BUFR LAND SYNOP RH2M (%) 42771 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9957, expected range: -1.6896 0.7500
ship
SHIP WIND VECTOR DIFF (M/S) : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8893, expected range: 0.1483 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9VPY4 : out of range
29 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=904.4836, expected range: 321.6296 1321.6290
Severely_persistent: rms_fgdepar=905.0479, expected range: 320.3119 1325.0655
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9HA4777 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=671.2251, expected range: 38.0878 1291.1574
Severely_persistent: rms_fgdepar=671.2251, expected range: 38.0878 1291.1574
BUFR SHIP SYNOP SURFACE PRESSURE (PA) D5UO7 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=876.2645, expected range: 738.3636 1270.7945
Severely_persistent: rms_fgdepar=876.2645, expected range: 738.3636 1270.7945
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) EUMDE25 : out of range
Severe: rms_fgdepar=17.5908, expected range: 0.0000 9.5685
Severe: avg_pge=0.8658, expected range: -0.7181 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) V7A4867 : out of range
Severe: avg_pge=0.8712, expected range: -0.2826 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 9HA4777 : out of range
Severe: rms_fgdepar=15.5443, expected range: 0.0000 15.0800
Severe: avg_pge=0.8937, expected range: -1.0447 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) A8SG7 : out of range
Severe: avg_pge=0.8941, expected range: -1.1050 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7UX2 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=863.5677, expected range: -109.1062 442.0346
Severe: rms_fgdepar=863.5677, expected range: 0.0000 442.7362
Severe: avg_pge=0.8805, expected range: -0.8379 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) EUMDE25 : out of range
Severe: rms_fgdepar=341.3405, expected range: 0.0000 122.5735
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V2729 : out of range
Severe: rms_fgdepar=789.6097, expected range: 0.0000 350.4150
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 3FPQ9 : out of range
Severe: rms_fgdepar=308.7052, expected range: 0.0000 95.1955
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 6501671 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-579.8788, expected range: -1379.1842 1347.6377
Severely_persistent: rms_fgdepar=581.6661, expected range: 0.0000 917.5557
Severely_persistent: avg_pge=0.9045, expected range: -0.0676 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4101655 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=617.1284, expected range: -319.5016 540.9644
Severely_persistent: rms_fgdepar=617.5217, expected range: 0.0000 510.0949
Severely_persistent: avg_pge=0.9060, expected range: -1.0100 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6204596 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8817, expected range: -0.3206 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 2101635 : out of range
Severe: rms_fgdepar=403.8074, expected range: 0.0000 163.7638
Severe: avg_pge=0.8598, expected range: -0.6215 0.7500
metar
METAR SURFACE PRESSURE (PA) OIGK : out of range
Severe: avg_fgdepar=506.6530, expected range: -699.9905 692.7253
Severe: rms_fgdepar=509.8374, expected range: 0.0000 625.5834
METAR SURFACE PRESSURE (PA) MHLM : out of range
Severe: rms_fgdepar=397.3120, expected range: 0.0000 133.3408
snow
BUFR LAND SYNOP SNOW (CM) _MF1EB15 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-773.6146, expected range: -774.0210 -771.9674
BUFR LAND SYNOP SNOW (CM) _MF1EB15 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=773.6148, expected range: 771.9674 774.0211
BUFR LAND SYNOP SNOW (CM) _MI11588 : out of range
32 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=60.1429, expected range: 52.0858 67.6939
BUFR LAND SYNOP SNOW (CM) _MI11588 : out of range
32 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=60.4708, expected range: 52.4585 67.8923
BUFR LAND SYNOP SNOW (CM) _MI1067E : out of range
34 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=61.3438, expected range: 51.6946 64.7621
BUFR LAND SYNOP SNOW (CM) _MI1067E : out of range
34 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=61.8650, expected range: 53.0131 64.7365
BUFR LAND SYNOP SNOW (CM) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=52.0000, expected range: -0.3575 0.4513
Severely_persistent: rms_fgdepar=52.0000, expected range: 0.0000 1.4476
MANUAL LAND SYNOP SNOW (CM) 37552 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=51.5000, expected range: -2.5495 61.8437
Severe: rms_fgdepar=52.3689, expected range: 3.2518 59.6186
t2m
BUFR LAND SYNOP 2M TEMPERATURE (K) 89009 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-12.5317, expected range: -17.8631 1.8776
Severely_persistent: rms_fgdepar=12.5494, expected range: 0.0000 17.9230
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
26 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-16.9471, expected range: -19.8529 -16.1161
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
26 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=16.9588, expected range: 16.1174 19.8739
MANUAL LAND SYNOP 2M TEMPERATURE (K) 87305 : out of range
Severe: avg_fgdepar=13.2475, expected range: -5.3265 2.7168
Severe: rms_fgdepar=13.2475, expected range: 0.0000 6.8522
MANUAL LAND SYNOP 2M TEMPERATURE (K) 60368 : out of range
Severe: rms_fgdepar=11.1262, expected range: 0.0000 5.2424
MANUAL LAND SYNOP 2M TEMPERATURE (K) 89009 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=-12.4817, expected range: -17.8131 1.9276
Severe: rms_fgdepar=12.4994, expected range: 0.0000 17.8721
MANUAL LAND SYNOP 2M TEMPERATURE (K) 63729 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=12.7775, expected range: 0.2473 3.3471
METAR 2M TEMPERATURE (K) SKSA : out of range
Severe: avg_fgdepar=16.3687, expected range: -1.5107 3.3451
Severe: rms_fgdepar=16.3687, expected range: -3.2581 5.9101
METAR 2M TEMPERATURE (K) NZSP : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=-12.1817, expected range: -17.8173 2.0630
Severe: rms_fgdepar=12.1948, expected range: 0.0000 17.8546
METAR 2M TEMPERATURE (K) UMMS : out of range
Severe: rms_fgdepar=10.5445, expected range: 0.0000 4.6632
BUFR LAND SYNOP 2M TEMPERATURE (K) 87305 : out of range
Severe: avg_fgdepar=13.1975, expected range: -5.1156 2.2856
Severe: rms_fgdepar=13.1975, expected range: 0.0000 6.5323